function getAfterDate(date, day) {
    if (isNull(date) || isNull(day)) {
        return null;
    }

    var temp = new Date(date);

    var time = temp.getTime() + (day * 24 * 60 * 60 * 1000);

    return getNewDate(new Date(time));
}

//getAfterDate(date, day)